So I have never built a mechanical keyboard and tbh I am quite overwhelmed with the options. I want to build one because I have ceramic keycaps. I like how they look. They 're just neat. They've been siting in my box of neat things. It is time to build a keyboard.
Sounds like an epic project. If you actually spend a lot of time on a keyboard you get a feel for your specific keyboard and doing things like replacing the keycaps with ones more to your preference will make you enjoy it more. Personally I don't give a shit about the noise. In fact, I prefer crunchy keyboards that make a lot of noise, although I could do without artificial added noises.
The old IBM 3270 keyboards with two rows of function keys, adding up to 24 function keys, were awesome, and they would put out a racket. Ceramic tends to make a bit of noise. I'm not sure how to do that even if you can silence the beamspring noise that puts out a lot of sound.
Never built a keyboard personally (other than replacing the keycaps and installing a foot pedal and stuff like that), but I've customized them to be more to my liking.
The tactile feel (the kind of shit haptics seek to emulate these days) of these keyboards was very satisfying and something you rarely see these days, and being able to remap two dozen function keys to do whatever the fuck you feel like was also great.
I'd suggest trying to find something with the feel you like but without the sound you apparently don't.
I used the kinesis for about 3 weeks, right up to when I would be able to return it. I think the concave form just didn't work for my hands/wrists, and honestly a surprising side effect was that when I would travel on site without it, typing on my laptop's keyboard became difficult.
It's sort of weird. When I first switched to the Advantage, it was because "normal" keyboards were starting to cause me carpal tunnel/tendonitis and other bad shit and it was becoming outright painful. Not only did normal keyboards cause me pain, they were actually also causing me obvious mechanical damage to my hands and wrists and the tendons between my wrists and elbows.
Totally went away with the switch although it took a couple months to get used to it. Also it stops people in the workplace from asking to use your computer because of the weird alien device you brought in.